Liquid strainer



$ mm. L fi II. J. WIENZKA LIQUID'STRAINER Filed March 2, 1927 v ruuncn r. wnuene, cu nuruw, new noun.

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u is well new to those sense in the in thet in liquid streiners where the liquid is torced egeinst the screen under considereble pressure, the, screen will become easily lltl clcgged, remeining so until it hes been removed end cleaned by e menuel operetion.

ll heve discovered that where the liquid being streined is ellowed to rise trom e point below the screen end then to how through the sums, that the screen will remein cleer i tor it longer period ot time, since e lerge e streiner body betore being pessed through pert ot the meteriel which would otherwise be curried egeinst the screen hes opportunity to settle to the bottom ot the streiner cesing. I

'llhe principel object ot my invention hes been, theretore, to overcome the disedventeges tound in liquid streiners ot the present dey end to provide e strainer in which the liquid shell heve e leterel tlow in the the screen thereot, whereby the toreign matter hes. en op ortunit to settle,

.hnethcr obyect hes een to rovide e device in which the relatively c can oil shell rise into ports edjecent the straining medium' ot the device, whence it pesscs into end through such streining medium,

hdoreover -the streining medium ct my device is preterebly in the term ot e double screen which is sir-constructed that the oil is obliged to make three pesses through the seine.

Furthermore, my device is eesily cleened and issimple end inexpensive to menutecture.

The ebove objects end. edventeges have i been eccomplished by the device shown in till) the eccompenyin drewings, ct which:

ltig. l is e side, sectioned view ot my device.

Fig. 2' is'e sectionel line t-t 'ot l ig. l.

3 is e sectional view'tehen on line plan view telren on lllly device comprises e cesing t hevinge liquid the e end vt liquid outlet, t lfille liquidinlet and outlet ere seperetedv-by e t which extends leterelly across the titlt tit cesingu it streiner element it] is cerriedby the cesing and held by en upstanding porg tion it termed es e pert ot the cesing. The,

ed opposite the well t below the let opening to the pessege ot liquid directly trom the interior ot the chember 5. An oil port 13 is provided in each side ot the cesing 5 end extends up into the portion ll, thus conducting the liquid to be strained tromthe lower chember it ot the streiner cesinfimh up between the wells 8 end 12 end into e upwerdly extending portion 11 ot the cesing, thus bringing the liquid into contect with opposite teces ot the streiner element. The inlet opening 6 ot the cesing is connected with the chember it thereot by meens 0t e verticel pessegeway 11.5. "the outlet opening l is somewhat restricted as shown in Fig. 2 where it terminates at the streining element end it is sepereted trom the liquid ports 13 on each side. by e thin well 16, whereby ell eveileble screenmg surtece is exposed to the pessege ot the li uid.

e casing 5 is provided with e sump it which is pertielly' sepereted trom the chember ltot the cesing by meens ot e curved well it. This wall is errenged beneeth the pessegewey 15 end serves to detlect the incoming liquid leterelly ecross the casing. This serves to give opportunity tor the toreign mutter to settle to the sump 17, end in being detlected across the cesing above the sump the incoming tlow ot oil is thus prevented trom stirring up the toreign metter elreedy eccurnuleted in the sump. The sump is provided with en outlet opening 19 heving e cup 20 fitted thereon, whereby the eccumuletion in the sump mey be eesily end quiclrly removed.

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the streiner element -10 ot my device preterably comprises en outer streiner 25 cylindricel in term and fitted into cylindricel portions'torrned in the cesingend extension ll. lhis outer strainer is provided with en impertorete cap 26 et its lower end, whereby it isclosed et this point egeinstthe entrance ot liquid. hrrenged at the upper end ot the streiner element is an etteching cap 2?, which is provided with en inwerdly extending well portion 28 to which the outer screen 25 is secured. The cup 27 is elso provided with en ennuler deluge 29, and this flenge is disposed on the upper end ot the upwerdly extending porj tion ll. A. nut 30, screW-threeded to the upper end ot the portion 11 end engaging the den e 29, serves to hold the cup 27 in piece. n u werdly extendin lug 31 is provided on t e cup 2? and it is ormed with till) ice lltl an aperture 32, whereby the strainer element may be easily removed from the casing and handled during the cleaning operation. Arranged Within the outer Cylindrical strainer 25 is an inner strainer 33. The inner strainer is preferably V-shaped in form and its vertical edges are secured by any suitable means, as for instance soldering to the interior surface of the outer strainer 25. The edges of the inner strainer are so positioned that they come substantially opposite the walls 16 of the casing or in such a position that the liquid within the outer strainer 25 must pass through the inner strainer also before it can pass into the outlet 7.

As shown by the arrows in the drawings, the liquid being strained will enter the inlet opening 6, pass downwardly through the passageway 15. connected therewith and then be deflected laterally across the chamber 14 of the casing by the curved wall 18. In its lateral passage, a large percentage of the foreign matter will settle into the sump 17 while the relatively clean oil will be caused to rise up into the ports 13 formed in the casing and member 11. In its passage upwardl into the ports 13, the liquid will be broug t into contact with the opposite sides of the outer strainer 25 and will pass therethrough. After passing through the sides of the outer strainer 25 the liquld will enter a chamber 35 formed between the outer strainer 25 and the inner strainer 33. From this chamber the liquid will pass through both sides of the inner strainer and into a chamber 36 formed between the interior surface of this strainer and the adjacent surface of the outer strainer. From the chamber 36 the fluid will pass through that part of the outer strainer which lies between the V-shaped walls of the inner strainer and enter the outlet opening 7 of the device.

Obviously, some modifications of the details herein shown and described may be made without departing from the spirit of my invention or the scope of the appended claims, and I do not, therefore, Wish to be limited to the exact embodiment herein shown and described, the form shown being merely a preferred embodiment thereof.

Having thus described my invention what I claim is:

1. A liquid strainer comprising a casing having inlet and outlet openings, a vertically arranged dividing wall between the inlet and outlet openings of the casing, a sump formed at the lower part of the casing, and a vertically arranged removable strainer element adjacent'the dividing wall and having a longitudinal portion of its periphery in contact with the wall, the casing being formed with vertical inlet ports at one side of the dividing wall and on opposite sides of the strainer for conducting the liquid from opposite points to the exposed portions of the strainer.

2. A liquid strainer comprising a casing having inlet and outlet openings, the casing being formed with a vertical )assageway connected at its upper end with the inlet opening, a sump formed in the lower part of the casing, a removable strainer element arranged in the upper part of the casing, and a laterally extending deflecting wall arranged below the vertical passageway and the strainer element, whereby the incoming fluid is prevented from stirring up the accumulated foreign matter in the sump.

3. A liquid strainer comprising a casing having inlet and outlet openings, a sump formed in the lower part of the casing, a removable strainer element arranged in the upper part of the casing, and a deflecting wall arranged below the strainer element and on the inlet side of the casing, the casing being formed with vertical ports for conducting the liquid to the exposed portions of the strainer element.

4:. A liquid strainer comprising a casing having inlet and outlet openings, a sump formed in the lower part of the casing, and a removable strainer element arranged in the upper part of the casing, the strainer element comprising an outer strainer and an inner strainer, the inner strainer being disposed within the outer strainer and having its longitudinal edges secured to the outer strainer at points adjacent the sides of the outlet opening of the casin the strainers being so arranged that the liquid is forced to pass through more than one strainer wall.

5. A liquid strainer comprising a casing having inlet and outlet openings, a vertically arranged dividing wall between the inlet and outlet openings of the casing, vertical inlet ports formed in the casing at one side of the wall, and a vertically arranged removable strainer element adjacent the dividing wall and between the inlet ports, the strainer element consisting of a plurality of interspaced strainers, comprising an outer strainer and an inner strainer so arranged that the fluid in passing through the strainers will be strained more than once.

6. A liquid strainer comprising a casing having inlet and outlet openings, and a strainer element carried by the casing, the strainer element comprising an outer strainer and an inner strainer, the inner strainer being disposed within the outer strainer and having its longitudinal edges secured to the outer strainer at points adj acent the sides of the outlet opening of the casing, an imperforate cap provided at the lower end of the element, and an attaching cap provided at the upper end of the element. 7

7. A liquid strainer comprising a casing having inlet and outlet openings, a strainer llu neaaeee the casing being formed with vertical ports adjacent the strainer element, separating walls contacting with the element and separating the ports from the outlet opening of the casing, the strainer element comprising an outer strainer and an inner strainer, the inner strainer being arranged within the outer strainer and havin its vertical edges secured to the outer stralner at points substantially opposite the separating walls.

8. A liquid strainer comprising a casing having inlet and outlet openings, a sump formed in the lower part of the casing, and a removable strainer element arranged in the upper part of the casing, the strainer element comprising an outer cylindrical strainer, and an inner strainer having one of its sides open and having its longitudinal edges along the open side secured to the outer strainer at points adjacent the sides of the outlet opening of the casing.

9. A liquid strainer comprising a casing having inlet and outlet openings, a sump formed in the lower part of the casing, and a removable strainer element arranged in the upper part of the casing, the strainer element comprising an outer cylindrical strainer and an inner ll-shaped strainer disposed within the outer strainer, the longitudinal edges of the inner strainer being secured to the outer strainer at points adjacent the sides of the outlet opening of the casing.

10. A liquid strainer comprisinga casing having inlet and outlet openings, a sump formed in the lower part of the casing, a removable strainer element arranged in the upper part of the casing, the strainer ele ment comprising an outer cylindrical strainer and an inner strainer disposed within the outer strainer, the inner strainer having one of its sides open and having its longitudinal edges along the open side secured to I, a laterally extending,

the outer strainer at points adjacent the sides of the outlet openin of the casin and eflecting wal arranged below the strainer element and on the inlet side of the casing. v

ll. A liquid strainer comprising a casing having inlet and outlet openings, the casing being formed with a vertical passageway connectedat ita -upper endwith the inlet opening, and a cylindrical strainer disposed above the lower end of the verticalpassageway between the inlet and outlet openings, and having imperforate ends, a portion of the surface of the strainer being exposed to the incoming fluid, and a separate portion of its surface exposed to the outgoing fluid.

l2. A liquid strainer comprising a casing having inlet and outlet openings, and a cylindrical strainer disposed between the [inlet and outlet openings and comprising an outer cylindrical strainer and an inner strainer, the strainers being closed at both ends, the outer strainer having a portion of its periphery exposed to incoming fluid, and a separate portion of its surface exposed to outgoing fluid, the inner strainer having an open side arranged adjacent the portion of the outer strainer, which is exposed to the outgoing fluid.

13. A liquid strainer comprising a casing having inlet and outlet openings, a sump formed in the lower part of the casing, a removable strainer element arranged in the upper part of the casing, the. strainerelement comprising a cylindrical strainer having closed ends and having a portion of its longitudinal surface exposed to the incoming fluid and a separate ortion of its longitudinal surface exposed to the outgoing fluid, and a laterally extenfling, deflecting wall arranged below the strainer element and on the inlet side of the casing ll. A liquid strainer com rising a casing having inlet and outlet openings, a vertically arranged dividing wall between the inlet and outlet openin s of the casing, the casing being formed wit oppositely arranged vertical inlet ports at one side of the wall, and a vertically arranged removable strainer element disposed between the vertical inlet ports and having a portion of its surface exposed to the outlet openings.

15. A liquid strainer comprising a casing having inlet and outlet openings, a vertically arranged dividing wall between the inlet and outlet openings of the casing, a vertically arranged strainer element carried by the casing, the casing being formed with vertically arranged inlet ports disposed at diametrically opposite sides of the strainer, the strainer being exposed to the outlet opening at .a point in its circumference substantially at right angles to the inlet ports.

ln testimony whereof, l have hereunto signed my name,

' IGNAUE all. 'WlilhlflflA. 

